Patent US2284045A successfully refreshed from Google Patents.
Patent US3070896A successfully refreshed from Google Patents.
US3070896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wood drying method
Assignee: ST Regis Paper Co
•
Filing: 1958-09-24
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Granted: 1963-01-01
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Expires: 1978-09-24
Abstract
No abstract record available.
Inventors
- 👤 Melvin R Knudson
- 👤 Delbert G Bowen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:21
CPC Classifications
F; F26; F26B; F26B9/00; F26B9/06; F26B2210/00; F26B2210/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
IN A PROCESS OF DRYING WOOD, THE STEPS OF ENCLOSING THE WOOD IN A CHAMBER FORMING PART OF A NORMALLY CLOSED CIRCULATING SYSTEM, ADMITTING AIR OF LOW RELATIVE HUMIDITY TO THE CHAMBER, CAUSING SUCH AIR TO CIRCULATE THROUGH THE ZONE OF ENCLOSURE OF SAID WOOD, HEATING THE AIR TO MAIN-
Claim 2
Dependent Claim
50 words
IN A PROCESS OF DRYING WOOD, THE STEPS OF ENCLOSING THE WOOD IN A CHAMBER FORMING PART OF A NORMALLY CLOSED CIRCULATING SYSTEM, ADMITTING AIR OF LOW RELATIVE HUMIDITY TO THE CHAMBER, CAUSING SUCH AIR TO CIRCULATE THROUGH THE ZONE OF ENCLOSURE OF SAID WOOD, HEATING THE AIR TO MAIN-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |